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Heat Stress: Why would I need a QT-34/3 or QT-36/3 with three sensor bars?

April 26, 2017bars heat qt-34 qt-36 sensor stress

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Heat Stress: Why would I need a QT-34/3 or QT-36/3 with three sensor bars?

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When the temperature in the space surrounding a worker does not have a constant value, it is necessary to determine the WBGT index at three heights corresponding to the worker’s ankles, abdomen, and head. A weighted average is then calculated using those three WBGT measurements. This is based on ISO 7243:1989. Also, one unit may be used to monitor three sensor bars at different locations of a plant, shop, or any area up to 100 feet away.